US2580511A - Release mechanism - Google Patents

Release mechanism Download PDF

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Publication number
US2580511A
US2580511A US762908A US76290847A US2580511A US 2580511 A US2580511 A US 2580511A US 762908 A US762908 A US 762908A US 76290847 A US76290847 A US 76290847A US 2580511 A US2580511 A US 2580511A
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US
United States
Prior art keywords
toggle
lever
elongated
joint
axis
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Expired - Lifetime
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US762908A
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English (en)
Inventor
Branchu Paul Joseph
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merlin Gerin SA
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Merlin Gerin SA
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Publication date
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/06—Gearings comprising primarily only links or levers, with or without slides which can be made ineffective when desired
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G2700/00—Control mechanisms or elements therefor applying a mechanical movement
    • G05G2700/04—Control mechanisms limiting amplitude or adjusting datum position
    • G05G2700/08—Control mechanisms for locking members in one or more positions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Definitions

  • toggle release mechanisms comprising two toggle levers articulated to each other and connected respectively to the control mem her and to the movable contact member of 'the breaker; with the result that, when it is desired to efiect the release independently of the action of the control member, in accordance with the method of operation called with free release, the common pivot of the system is acted upon, which brings about the deflection of the system and the separation of the contacts.
  • the toggle release mechanism comprises a toggle member provided, beyond its articulation point with an extension, having the extremity thereof forming a lip which engages, in closed position of the mechanism, a recess in a bent lever, which is pivotall mounted on a shaft integral with the second toggle member, the main feature of the invention being the provision of a lock effective in closed position to prevent the rotation of the bent lever.
  • the tangential component of the reaction exerted on the toggle lock is much less important than its normal component which, by reason of the reduction caused by the use of a force-reducing bent levenhas but a small value, the lock being preferably located at the end of the long arm of the bent lever. This is why the force necessary to overcome this tangential component and effect the displacement of the lock may be reduced to a minimum value.
  • the stability of the movable assembly in the coupled position is ensured by the locking of the toggle mechanism and by dynamic equilibrium of the lock.
  • the angle formed by the two toggle members of the toggle mechanism may be increased in the coupled position, without increasing this force to an appreciable extent, which makes it possible to obtain a free and rapid opening of the contacts operated by the device.
  • this angle is, in any case, conditioned by the values of the reactions exerted on the extreme toggle aritculations and caused by the control and contact systems associated with this mechanism; in other words, if these reactions are considerable, the angle will be little accentuated, with the median articulation of the toggle thus located in the vicinity of .a straight line joining the extreme axes.
  • An improvement which could be applied to this device consists in providing that toggle-member which carries the mentioned lip or prolongation, with a cam adapted. to free the toggle lock and maintain it free, after the buckling of the toggle has. commenced with the object of preventing 3 said lip or prolongation from meeting the locked force-reducing lever prematurely, at the moment when the lip should return to become lodged in the recess of the lever.
  • the toggle lock may advantageously consis of a spindle milled on the side to present at least one flat surface. It is preferably balanced about its axis and associated with a balanced Weight member, with a strong moment of inertia giving a flywheel effect to render it insensitive to shocks and vibrations. It has been recognized by the applicants that in selecting the desired inertia of the assembly formed by the lock and the balance weight, the stability of the mechanism and its security of operation (notably when using the cam), can be substantially increased, practically Without interfering with its sensitivity.
  • the invention relates, also to devices allowing the use of such toggle release mechanisms, adapted for the control of circuit-breakers with free release.
  • control shafts and the shaft connected to the movable contacts to form together any angle, or to be coaxial, and having the operating angle fairly wide.
  • Figs. 1 and 2 are a front elevation and a partial sectional side view of an improved toggle release mechanism in the coupled position.
  • Fig. 3 is a partial sectional side view of the same'toggle release mechanism in the deflected or buckled position.
  • Fig. 4 is a sectional view of a toggle release mechanism used, more or less conventionally, in combination with levers for operating a circuitbreaker with free release.
  • Figs. 5 and 6 illustrate the same parts in different positions (the toggle-release mechanism being shown in elevation).
  • Fig. 7 shows a similar device, in which ball joints are used so that the control shaft and the shaft of the circuit-breaker need not be parallel but may even be perpendicular to each other.
  • Fig. 8 discloses detail of a convenient construction of the ball joint.
  • Figs. 9, 10-and l1 illustrate in various positions, one device in which the control shaftand the shaft of the circuit-breaker have the same axis, with the angular deviation between the closed and the released position relatively large.
  • the toggle-member [-2 of the Figures 1 to 3 comprises articulation spindies H and I2, one of which is integral with the control member and the other integral with the movable contacts of a breaker.
  • This toggle mechanism primarily includes two toggle members I and 2 articulated together at 3. 'The articulation pivot 3 is located between the two extreme spindles II and I2 in a position adjacent to a straight line which passes through these two spindles. In this case, the toggle mechably adjacent to the articulation pivot I4 of the bent lever 5. This lever is engaged or immobilized in turn at the extremity of one of its arms 2? by a lock 6 movable about the axis of a spindle 23 rotatably mounted on toggle member 2.
  • the lock 6 forms a portion of the spindle 28 bearing on the two side-pieces of lever 2, said portion having the length enclosed between the side pieces of rectangular shape.
  • the present invention is not limited to such a feature, for obviously, the locking operation may be performed by other equivalent means, as for example by a hook, a bolt or the like.
  • the lock 6- is preferably centrally balanced about its axis and made integral with a member 8 forming a flywheel.
  • the lock 6 is partially rotated during operation and may be returned by a spring. 7
  • a spring disposed about the pivot 3 can be arranged to act at one end on pivot II and at the other end on pivot I2 in such manner as to straighten or restore the mechanism to original position.
  • pivot I4 is mounted on toggle lever 2 which carries'pivot II, one end of the spring could instead be arranged to act on pivot is, with the same effect.
  • a boss I3 on the toggle lever I could be added to return lever 5 into the coupling position, when the toggle mechanism is straightened.
  • the lock 5 might accidentally block arm 2'! and thereby immobilise leverb sothat lip 4 of the toggle member I in the course of an attempt at a further straightening, impinges against the extremity in the form of a lip-member I9, and is thus prevented from reaching its place in the recess.
  • the member It may be extended in such manner as to form a ramp in constant contact with the lips and, in this manner to avoid the locking of the lever 5.
  • a lever 16 is mounted on the spindle H and its travel is limited by a stop ll.
  • Another lever I8 is mounted on the spindle l2 connected to the movable contacts of the circuit-breaker .(not shown).
  • Fig. 4 represents the whole of the controlling mechanism in closed or locked position.
  • the toggle is articulated at I9 and 20 at the ends of the two levers l6 and I8 and includes the two toggle members, I and 2, linked together by pivot 3 and initially maintained rigidly in locked position by the very sensitive system, described hereinabove; for unlatching this system and buckling the toggle. It suffices for an operator to act on the finger I through a tripping lever 2
  • Fig. 5 illustrates the same mechanism as in Fig. 4, but the release has been performed by the deflection or buckling of the toggle, without return of the operating handle (not shown) which acts on the spindle II.
  • Fig. '7 illustrates an improvement in the preceding mechanism; the two extremities of the toggle release mechanism are articulated on the levers l6 and 18 by means of ball-joints, allowing a certain angular deviation between the toggle and the levers.
  • shaft [2 of the circuit-breaker and the shaft ll of the operating handle or operating lever can be directed so as to form together a certain angle; and they can even be perpendicular to each other.
  • bevel gears or other costly transmission members can thus be avoided without any alteration of the operation of the toggle release mechanisms.
  • Each ball-joint comprises circular planoconvex plates 23, fixed by means of screws on a cylindrical stud 24, and freely pivoting in the articulation seats 30 of the member I.
  • the ball joint, so constituted, is held between the two branches of the forked lever l8. It is thus seen that the main rotary movement occurs directly about shaft 24 by pivoting of member I in normal conditions, while the movement of the ball joint only takes place for compensating the slight obliquities due to the angle formed by the main shafts.
  • This form is an advantage, as the friction of the cylindrical shaft 24 is obviously much less than that occurring between theball joint and its housing and the normal operation of the toggle release mechanism is consequently, not impeded.
  • Figs. 9 to 11 illustrate the toggle release mechanism of a circuit-breaker in which the control shaft H and the shaft connected to the movable contacts of the circuit-breaker are coaxial.
  • levers l6 and Marc of different lengths and their difference is at least equal to the minimum length of the atoggle, mechanism in operated or buckledposition in order to allow lever-18 to pass beyond lever It.
  • lever l6 preferably integral with an operating handle is normally held by the latch 25, while the toggle mechanism, pivotally mounted about pivots I9 and 20 in turn holds lever l8 connected to the movable contacts.
  • togglemechanism When the togglemechanism is buckled or deflected, it turns about articulation pivot 3 and lever I8, now free, bypasses lever i6 and reaches the position shown in Fig. 10. At the end of the travel, the heel 26 of the toggle mechanism lifts, latch 25 and lever l6, which now in turn is freed, and can be brought into the position of Fig. 11, when the toggle is thus set up and ready for a new closure.
  • the toggle mechanism could be utilized to maintain in position any member other than the movable assembly of a circuit-breaker.
  • any member other than the movable assembly of a circuit-breaker For example, when articulated at one of its extremities to a fixed point, it could serve to sustain a heavy body or to immobilize a member urged by operating forces, while at the same time effecting the release of these members when they are brought into deflected or buckled position.
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turning about a first axis transverse to said toggle members; an elongated lever pivotally connected to said first toggle member for turning about a second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially different widths forming a shoulder therebetween, said lever portions being located on the same side of the pivotal'connection of said lever and the lever portion of lesser width being located nearer to the pivotal connection of the lever than the lever portion of greater width; an elongated projecting portion connected to said second toggle member and having an end located opposite to said lever portion of lesser width and abutting against said shoulder when the toggle joint is in its extended position so as to tend to turn said elongated lever about said second axis; lock means mounted on one of said toggle members and engaging said elongated lever for opposing turning thereof by said elongated projecting portion
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to eachother for mutual turning about a first axis transverse to saidtoggle memberspan elongated lever pivotally connected at an inter,- mediate part thereof to said first toggle member for turning about a second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially different widths forming a shoulder therebetween, said lever portions being located on the same side of the pivotal connection of said lever and the lever portion of lesser width being located nearer to the pivotal connection of the lever than the lever portion of greater width; an elongated projecting portion connected to said second toggle member and having an end located opposite to said lever portion of lesser width and abutting against said shoulder when the toggle joint is in its extended position so as to tend to turn said elongated lever about said second axis; an elongated bar pivotally connected to said first toggle member for turning about a third
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turningabout a first axis transverse to said toggle members; an elongated lever pivotally connected at an intermediate part thereof to said first tog le member for turning about a second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially difierent widths forming a shoulder therebetween, said lever portions being located on the same side of the pivotal connection of said lever and the lever portion of lesser width being located nearer to the pivotal connection of therlever than the lever portion of greater width; an elongated'pro jecting portion connected to said second toggle member and having an end located opposite to said lever portion of lesser Width and abutting against said shoulder when the toggle joint is in its extended position so as to tend to turn said elongated lever'about said second axis; an elongated bar pivotally connected to said first tog
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turning about a first axis transverse to said toggle members; an elongated lever pivotally connected at an intermediate part thereof to said first toggle member for turning about a second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially difierent widths forming a shoulder therebetween, said lever portions being located on the same side of the pivotal connection of said lever and the lever portion of lesser width being located nearer to the pivotal connection of the lever than the lever portion of greater width; an elongated projecting portion connected to said second toggle member and having an end located opposite to said lever portion of lesser width and abutting against said shoulder when the toggle joint is in its extended position so as to tend to turn said elongated lever about said second axis; an elongated bar pivotally connected to said first toggle member for turning about a third axis substantially
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turning about a first axis transverse to said toggle members, each toggle member having an end portion located distant from the other toggle member when the toggle joint is in its extended position; a first link member pivotally connected at one end thereof to said end portion of said first toggle the other end thereof to a rotatably mounted member to be controlled by the toggle joint, whereby when the toggle joint is moved between its extended and collapsed positions, said link members are turned and said rotatably mounted member also is turned; an elongated lever pivotally connected to said first toggle member for turning about a, second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially different widths forming a shoulder therebetween, said lever portions being located on the same side of the pivotal connection of said lever and the lever portion of lesser width being located nearer to the pivotal connection of the lever than the lever portion
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turning about a first axis transverse to said toggle members, each toggle member having an end portion located distant from the other toggle member when the toggle joint is in its extended position; a first link member pivotally connected at one end thereof to said end portion of said first toggle member and being pivotally mounted at its other end; a second link member pivotally connected at one end thereof to the end portion of said second toggle member and being connected at the other end thereof to a rotatably mounted member to be controlled by the toggle joint, whereby when the toggle joint is moved between its extended and collapsed positions, said link members are turned and said rotatably mounted member also is turned; an elongated lever pivotally connected to said first toggle member for turning about a second axis substantially parallel to said first axis, said lever having two immediately adjacent portions of substantially different widths forming a shoulder therebetween, said lever portions being located
  • a toggle joint movable between extended and collapsed positions and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members piv0t ally connected to each other for mutual turning about a first axis transverse to said toggle members, each toggle member having an end portion located distant from the other toggle member when the toggle joint is in its extended position; a first link member, pivotally mounted at one end thereof; first ball-joint means located at the other end of said first link member and at said end portion of said first toggle member for pivotally interconnecting said first link member and said first toggle member; a second link member connected at one end thereof to a rotatably mounted member to be controlled by the toggle joint; and second ball-joint, means located at the other end of said second link member and at said end portion of said second toggle member for pivotally interconnecting said sec ond link member and said second toggle mem ber, whereby said rotatably mounted member is turned when the toggle joint moves between its extended and collapsed positions; an elongated
  • a toggle joint arrangement in which the toggle joint is movable between extended and collapsed positions comprising, in combination, first and second toggle members pivotally connected together for mutual turning about a first axis transverse tosaid toggle members; eachof said toggle members having an end portionloca'ted distant from the other toggle member when the toggle joint is in its extendedposition, and said end portions of said toggle'members each being formed with a circular opening passing therethrou'gh; a pair of substantially cylindrical Shafts mounted respectively in said openings in the end portions of said toggle members so that said toggle members may each pivot with respect to said shafts; two pairs of ball-joint members having spherical outer surfaces located respectively at each end portion of said toggle members, the pair of ball-joint members at each end portion of said toggle member being located on opposite sides of said toggle members about the openings thereof and being connected to the shafts extending through said openings inthe toggle members; and a pair of link members each formed at one end thereof with a ball-joint seat located about one of said pairs of ball-jo
  • a toggle joint movable between extended and collapsed positions. and a releasable lock mechanism therefor comprising, in combination, first and second elongated toggle members pivotally connected to each other for mutual turningabout a first axis transverse to said toggle members; a substantially L-shaped lever having first and, second legs and being, pivotally connected adjacent to the junction of its legs to said first toggle member for turning about a second axis substantially parallel to said first axis; said first leg of said L-shaped lever being formed with a recess therein on the inner side thereof and adjacent to the pivotal connection of said!- shaped lever; an elongated projecting portion formed integrally with.
  • said second toggle member and having an end located in said recess of said first leg of said L-shaped member when the toggle joint is in its extended position, the said end of said projecting portion abutting against the side of said recess which is adjacent to the outer end of said first leg of said L-shaped lever so as to tend to turn the same about said second axis; an elongated bar rotatably mounted in said first toggle member for turning movement, about an axis substantially parallel to said first axis, said bar having a rectangular section located adjacent to the outer end portion of the second leg of said L-shaped lever, and a narrow side of said rectangular bar section abutting against the inner side of said second leg of said h-shaped lever adjacent the outer end thereof so as to thereby oppose turning of said L-shaped lever by said projecting portion and in this way to maintain the toggle joint in its extended position; a crank connected to an outer end of said elongated bar for turning the same, whereby, when said crank causes said narrow side of said rectangular bar section to be moved away from the inner
  • a toggle joint arrangement in which the toggle joint is movable between extended and collapsed positions comprising, in combination, first and second toggle members pivotally connected together for mutual turning about a first axis transverse to saidtoggle members, each of said toggle members having an end portion located distant from the other toggle member when the toggle joint is in its extended position; a first link member pivotally connected at one end thereof to said end portion of said first toggle member and being pivotally mounted at its other end for turning about a second axis; a second link member pivotally connected at one end thereof to said end portion of said second toggle member and being pivotally mounted at its other end for turning about said second axis, said second link member being shorter than said first link member and the difference in length between said first and second link members being at least equal to the minimum length of the toggle joint as it moves between its extended and collapsed positions; pivotally mounted latch means engaging said one end of said first link member so as to prevent the turning thereof about said second axis; and a projecting portion connected to said first toggle member and having an end located adjacent to said latch means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
US762908A 1942-10-12 1947-07-23 Release mechanism Expired - Lifetime US2580511A (en)

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Application Number Priority Date Filing Date Title
FR974284X 1942-10-12

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Publication Number Publication Date
US2580511A true US2580511A (en) 1952-01-01

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US762908A Expired - Lifetime US2580511A (en) 1942-10-12 1947-07-23 Release mechanism

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US (1) US2580511A (enrdf_load_stackoverflow)
BE (1) BE466792A (enrdf_load_stackoverflow)
DE (1) DE974284C (enrdf_load_stackoverflow)
FR (2) FR979954A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2975584A (en) * 1959-03-13 1961-03-21 Collins Brothers Machine Compa Automatic stop spindle mechanism
US2985123A (en) * 1958-08-18 1961-05-23 Strutwear Inc Tack-producing attachment for buttonhole machines
US3451369A (en) * 1967-05-18 1969-06-24 Consolidated Alarm Systems Inc Vending machine alarm
US4723457A (en) * 1981-06-10 1988-02-09 Societe Anonyme Dite Socomec Sudden interlocking and teleunlocking mechanical assembly for a translation switch having automatic reinforced interlocker
WO1991002370A3 (en) * 1989-07-28 1991-06-27 Federal Pioneer Ltd Miniature circuit breakers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286187B (de) * 1964-04-18 1969-01-02 Licentia Gmbh Verklinkungsmechanismus fuer Ausloeser von Selbstschaltern
GB1322452A (en) * 1970-09-11 1973-07-04 Electrical Protection Co Ltd Circuit breakers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US441260A (en) * 1890-11-25 tybeeq
US777295A (en) * 1903-03-03 1904-12-13 Ver Maschinenfabrik Augsburg Und Maschinen Baugesellschaft Nuernberg A G Speed-regulator for explosive-engines.
US1041975A (en) * 1912-06-24 1912-10-22 Int Harvester Co Cultivator-tooth.
FR530469A (fr) * 1919-09-26 1921-12-23 Perfectionnements aux dispositifs d'accouplement servant à suspendre une masse d'unefaçon détachable ou à des applications analogues
DE502721C (de) * 1929-03-05 1930-07-16 Goetz Geb Drehkeilkupplung
US2218606A (en) * 1938-10-07 1940-10-22 Western Products Inc Valve
US2313197A (en) * 1941-11-18 1943-03-09 Lowell F Hammand Toggle joint
US2426039A (en) * 1944-11-13 1947-08-19 Mckune Frank Thermoresponsive latch and setting mechanism therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE262077C (enrdf_load_stackoverflow) *
DE323541C (de) * 1919-08-09 1920-07-29 Voigt & Haeffner Akt Ges Freiausloesung elektrischer Schalter unter Anwendung der Einrichtung
FR700815A (fr) * 1929-11-05 1931-03-07 Forges Ateliers Const Electr Dispositif d'enclenchement et de déclenchement pour disjoncteurs ou autres appareils analogues
DE651919C (de) * 1933-12-22 1937-10-26 Elin Akt Ges Fuer Elek Sche In Fuehrungsvorrichtung fuer die Schalttraverse eines Leistungsselbstschalters, insbesondere OElselbstschalters, mit Kniehebelfreiausloesung

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US441260A (en) * 1890-11-25 tybeeq
US777295A (en) * 1903-03-03 1904-12-13 Ver Maschinenfabrik Augsburg Und Maschinen Baugesellschaft Nuernberg A G Speed-regulator for explosive-engines.
US1041975A (en) * 1912-06-24 1912-10-22 Int Harvester Co Cultivator-tooth.
FR530469A (fr) * 1919-09-26 1921-12-23 Perfectionnements aux dispositifs d'accouplement servant à suspendre une masse d'unefaçon détachable ou à des applications analogues
DE502721C (de) * 1929-03-05 1930-07-16 Goetz Geb Drehkeilkupplung
US2218606A (en) * 1938-10-07 1940-10-22 Western Products Inc Valve
US2313197A (en) * 1941-11-18 1943-03-09 Lowell F Hammand Toggle joint
US2426039A (en) * 1944-11-13 1947-08-19 Mckune Frank Thermoresponsive latch and setting mechanism therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2985123A (en) * 1958-08-18 1961-05-23 Strutwear Inc Tack-producing attachment for buttonhole machines
US2975584A (en) * 1959-03-13 1961-03-21 Collins Brothers Machine Compa Automatic stop spindle mechanism
US3451369A (en) * 1967-05-18 1969-06-24 Consolidated Alarm Systems Inc Vending machine alarm
US4723457A (en) * 1981-06-10 1988-02-09 Societe Anonyme Dite Socomec Sudden interlocking and teleunlocking mechanical assembly for a translation switch having automatic reinforced interlocker
WO1991002370A3 (en) * 1989-07-28 1991-06-27 Federal Pioneer Ltd Miniature circuit breakers

Also Published As

Publication number Publication date
BE466792A (enrdf_load_stackoverflow)
FR979954A (fr) 1951-05-07
FR55809E (fr) 1952-09-08
DE974284C (de) 1960-11-17

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